1246212 - overflow: scroll should default to always showing a scrollbar on Fennec

Status: RESOLVED INVALID

(Firefox for Android Graveyard :: General, defect)

Description

[Alex Bell]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:46.0) Gecko/20100101 Firefox/46.0
Build ID: 20160205004003
Firefox for Android

Steps to reproduce:

For content:

<div style="width: 100px; height: 100px; overflow: scroll">
   <div style="width: 1000px; height: 1000px;"></div>
</div>


Actual results:

There should be visible scrollbars on Fennec.


Expected results:

No scrollbar is visible. Chrome on Android currently shows a scrollbar. There are many situations in which it is crucial to show scroll position to the user. I understand the need to maximize space on mobile, but it's often unclear that an element's contents are scrollable without a visual indicator. If I'm not mistaken on Fennec right now there is no way to show a native scrollbar for the above markup.

For designers who want to suppress the scrollbar, the ancient "overflow-style" property could be resurrected and implemented with support for "none". See 1011851 and:

https://www.w3.org/TR/css3-box/#overflow-style
https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-overflow-style

Note also that the Overflow Module Level 3:

https://drafts.csswg.org/css-overflow-3/

explicitly leaves it up to the UA's discretion whether or not to show scrollbars.

Comment 1

[Kevin Brosnan [Ex-Mozilla]]

Attachment: testcase from comment 0

Comment 2

[Kevin Brosnan [Ex-Mozilla]]

I don't see scroll bars in Chrome for Android using your testcase from comment 0. Using a Nexus 5p.

Comment 3

[Sorina Florean [:sflorean]]

Thanks for the report!
I will close this bug as invalid based on comment 2. If you have another test case and the issue is reproducible, feel free to reopen. Thanks!